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Josh Miller

@joshm88,678 subscribers

I help make Arc and Dia at @browsercompany

Shorts

A modern URL bar (in Dia): • Page Title not "/2025/12/seo-spam" gibberish • Space on both sides of "/" for readability • Hover to reveal & edit URL • Emphasize domain for trust+security Dia isn't just AI. It's refined browser basics too, The Browser Company style.

A modern URL bar (in Dia): • Page Title not "/2025/12/seo-spam" gibberish • Space on both sides of "/" for readability • Hover to reveal & edit URL • Emphasize domain for trust+security Dia isn't just AI. It's refined browser basics too, The Browser Company style.

1,748,567 views

The Browser Company of New York – a new look for a new era

The Browser Company of New York – a new look for a new era

1,164,946 views

Maybe my favorite feature we’ve ever shipped: Pinch on any website in the Arc Search app — like you’re pinching 🤏 to zoom out — and we’ll fold it down (origami-style) to summarize the page for you! Feels SO GOOD & saves so much time when people text you links on the go!

Maybe my favorite feature we’ve ever shipped: Pinch on any website in the Arc Search app — like you’re pinching 🤏 to zoom out — and we’ll fold it down (origami-style) to summarize the page for you! Feels SO GOOD & saves so much time when people text you links on the go!

254,942 views

The The Browser Company is back to shipping weekly updates to Dia. Our team’s aim is to make your workday on the internet 5% better every week. In celebration, we overhauled our release notes to highlight what’s new — meet “Dia Weekly” !

The The Browser Company is back to shipping weekly updates to Dia. Our team’s aim is to make your workday on the internet 5% better every week. In celebration, we overhauled our release notes to highlight what’s new — meet “Dia Weekly” !

59,445 views

Had a nice convo w/ Aravind Srinivas – we have similar aspirations & desire for a new guard. Now you'll be able to set Perplexity as your default search engine in Arc browser. Follow Arc to learn when it's live (any week now). Demo below. Toward a new internet!

Had a nice convo w/ Aravind Srinivas – we have similar aspirations & desire for a new guard. Now you'll be able to set Perplexity as your default search engine in Arc browser. Follow Arc to learn when it's live (any week now). Demo below. Toward a new internet!

182,118 views

Here's what The Browser Company's AI eng & ML teams are working on for Dia right now: (This is a pitch to come work for us; info at end) 🤖 COMPUTER USE – we've built our own bespoke APIs on top of Chromium to optimize latency, accuracy, and cost of computer-using agents. Demo attached. Big breakthroughs here in recent weeks. 🛡️ ON-DEVICE MODELS – we've built our own custom infra to run everything from encoder-only models to full LLMs on device. It's cross-platform, supports LoRa adapters, and optimized for the GPU. This system preserves privacy and enables fast inference times. 🧠 MEMORY – with your permission, Dia automatically tailors your AI experiences to you, personally, based on the tabs you open while browsing normally every day. We're also bringing vertical memory to specific features. ♻️ DATA FLYWHEELS – our Fall/Winter P0 is to double-down on training custom models based on implicit signals from daily use of Dia. Dia should get smarter and more useful the more people use it. Whether via RL, auto-generated prompts, or otherwise. If this work sounds interesting to you please visit our jobs page or email careers@thebrowser.company. Hiring nearly every related role -- from ML engineers to people prototyping with AI and context/prompt writers -- everyone encouraged to apply!!

Here's what The Browser Company's AI eng & ML teams are working on for Dia right now: (This is a pitch to come work for us; info at end) 🤖 COMPUTER USE – we've built our own bespoke APIs on top of Chromium to optimize latency, accuracy, and cost of computer-using agents. Demo attached. Big breakthroughs here in recent weeks. 🛡️ ON-DEVICE MODELS – we've built our own custom infra to run everything from encoder-only models to full LLMs on device. It's cross-platform, supports LoRa adapters, and optimized for the GPU. This system preserves privacy and enables fast inference times. 🧠 MEMORY – with your permission, Dia automatically tailors your AI experiences to you, personally, based on the tabs you open while browsing normally every day. We're also bringing vertical memory to specific features. ♻️ DATA FLYWHEELS – our Fall/Winter P0 is to double-down on training custom models based on implicit signals from daily use of Dia. Dia should get smarter and more useful the more people use it. Whether via RL, auto-generated prompts, or otherwise. If this work sounds interesting to you please visit our jobs page or email [email protected]. Hiring nearly every related role -- from ML engineers to people prototyping with AI and context/prompt writers -- everyone encouraged to apply!!

67,681 views

submitting new Arc mobile browser to Apple today !!! in celebration, here's one of my fav directions we prototyped (inspired by the iPhone wallet app):

submitting new Arc mobile browser to Apple today !!! in celebration, here's one of my fav directions we prototyped (inspired by the iPhone wallet app):

140,313 views

More proud today than any in The Browser Company history Not bc Arc is now on Windows (yay!), but bc of HOW this team pulled it off 🥇 Arc is the 1st Windows app built in Swift 💪 We share 80% of code btwn Mac & Windows 🫂 Built alongside 150k testers <3 THE BIG BET PAID OFF!!!

More proud today than any in The Browser Company history Not bc Arc is now on Windows (yay!), but bc of HOW this team pulled it off 🥇 Arc is the 1st Windows app built in Swift 💪 We share 80% of code btwn Mac & Windows 🫂 Built alongside 150k testers <3 THE BIG BET PAID OFF!!!

119,491 views

An "Internet Computer" exploration for Dia Metaphors aren't right, but there's something that way.

An "Internet Computer" exploration for Dia Metaphors aren't right, but there's something that way.

47,817 views

We're redesigning the loading animation in The Browser Company's new Arc Search app. Any ideas? Design constraints: 1. Bold enough to notice but not distracting 2. Pulls eyes to top 25% of screen 3. Fun & on brand w/ our vibe Would love suggestions from members (Andreas Storm Jordan Singer)!!

We're redesigning the loading animation in The Browser Company's new Arc Search app. Any ideas? Design constraints: 1. Bold enough to notice but not distracting 2. Pulls eyes to top 25% of screen 3. Fun & on brand w/ our vibe Would love suggestions from members (Andreas Storm Jordan Singer)!!

93,916 views

We heard you – now you can add Skills to Dia with one click. Browse the marketplace, add your favorites, and start using new Skills instantly. Our team is on fire. Big Dia upgrades arriving in the coming weeks. Dia is about to get much smarter and more personalized!

We heard you – now you can add Skills to Dia with one click. Browse the marketplace, add your favorites, and start using new Skills instantly. Our team is on fire. Big Dia upgrades arriving in the coming weeks. Dia is about to get much smarter and more personalized!

43,594 views

🔍 A𝗋𝖼 S𝖾𝖺𝗋𝖼𝗁 🔎 If Aliens arrived it'd be hard to explain why your Web Browser & Search Engine are different products (hint: $). What if we merged Search + ChatGPT *within* Arc's CMD Bar so you didn't need to go anywhere? Any other native Search+AI in browser ideas?

🔍 A𝗋𝖼 S𝖾𝖺𝗋𝖼𝗁 🔎 If Aliens arrived it'd be hard to explain why your Web Browser & Search Engine are different products (hint: $). What if we merged Search + ChatGPT *within* Arc's CMD Bar so you didn't need to go anywhere? Any other native Search+AI in browser ideas?

74,268 views

No matter where you go, and no matter which device, we believe your internet should go with you 🌏 Starting today, your Arc tabs, folders, & spaces SYNC in real-time across iPhone (Arc Search), Mac, & Windows. Android in the works. Here’s a demo from the new Arc Search app:

No matter where you go, and no matter which device, we believe your internet should go with you 🌏 Starting today, your Arc tabs, folders, & spaces SYNC in real-time across iPhone (Arc Search), Mac, & Windows. Android in the works. Here’s a demo from the new Arc Search app:

53,257 views

do you use Developer Mode/Tools in Arc? if so, would you find it useful if we added a "Pretty Screenshot" tool? prototype/demo from nate parrott below! only want to build if you'd find it valuable for quickly showing off your work-in-progress?

do you use Developer Mode/Tools in Arc? if so, would you find it useful if we added a "Pretty Screenshot" tool? prototype/demo from nate parrott below! only want to build if you'd find it valuable for quickly showing off your work-in-progress?

37,529 views

Videos

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The The Browser Company just signed a merger agreement to be acquired. We will remain independent. Our focus is Dia. I’ve written and rewritten this post more times than I’d like to admit, but what I keep coming back to is simple: the work continues, and we’re grateful for this moment. The work continues because when I stop by the coffee shop near our office, nobody is using Dia yet. Our “internet computer” vision hasn’t been realized. Dia hasn’t yet changed how you work on a Tuesday morning. This deal is about giving us the resources, distribution, and monetization muscle to get there. At the same time, it feels disingenuous not to pause and briefly celebrate this milestone. It reflects our team’s craftsmanship and relentlessness, the support of our coaches, board members, and advisors, and the incredible effort from our deal team: Ryan Purcell from Gunderson, Nancy Peretsman and Leah Schwartz from Allen & Co., and Clare, Abby, Eissra, Rebecca, Cory, Nash, and Hursh from The Browser Company. Most of all, we’re grateful for what this means for Dia. It means we can hire faster, ship faster, and bring Dia to more people. We can now invest in cross-platform support and secure syncing, train custom AI models designed specifically for Dia, and turn ambitious ideas about “computer use” and “memory” into reality. To everyone who’s filed a bug, sent feedback, or shared a kind word: thank you. We haven’t always gotten it right, but we’ve always cared deeply. That will never change. Dia isn’t going anywhere. We’ll be here for the long haul, with the same team just a new partner helping us push further. We’ll take a breath this weekend, and then get back to work. Big launch next month. In the meantime...

Josh Miller

947,274 views • 9 months ago

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Our vision for Act II of Arc

Josh Miller

1,887,240 views • 2 years ago

joshm's profile picture

Grateful for the outpouring the past few days. I can’t tell you how motivating it is to have people care so much about Arc. The encouragement, the criticism, the confusion. Took it all in <3 As a thank you, I’d like to speak more plainly about what’s happening and why – we owe it to you: 1. Every person who joined or invested in our company did so to build products beloved by hundreds of millions of people. “We want to be to the browser what the iPhone was to the cellphone” has been our rallying cry since Day One. We knew chance of success was low but the ambition made us leap out of bed every morning. 2. Arc is beloved, popular, and growing (4x daily actives YoY). But it’s now clear that what most people love about the product *is also* what will prevent it from reaching hundreds of millions of people in our target demographic (people who spend hours in their browsers each day for their livelihood). Arc is a niche browser, even if we did not intend for it to be so. 3. Luckily, we architected this company – from company name to investors and technical architecture – to support multiple products since Day One. See Arc Search. Our favorite brands have multiple product lines in the same category too (Apple, Nike, Disney). Hence our realization: why keep trying to make Arc something it is not? Nobody who loved Arc wanted Arc Max. Arc members just want it to be more stable, secure, and performant. “Let’s just do that!” 4. With Arc as our beloved but niche browser #1, we asked ourselves a simple question: if we founded the company TODAY (in 2024), with everything that we know, what would the browser of the future look like for hundreds of millions of people? Let’s go build *that* product, alongside Arc. A second browser that is easier to use, more focused, and more powerful. All in order to live up to our founding mission (#1 above). 5. Yet none of this would’ve happened if it weren’t for the timing (market timing is most underrated startup ingredient). Mark my words: the Web is going to dramatically change in 2025 – much more than we all appreciate. Crazy new AI & computer-use models are incoming. I promise you that new browsers will be the story of 2025 (The Browser Company aside). Why? The browser layer is the obvious epicenter of AI & Agents because of its unique context, cookies, & apps. 6. To build a breakthrough consumer product (#1) – like truly breakthrough – you need a catalyzing innovation or technology. AI will be that for the next era of browsers, whether we win or someone else does. So why us (other than Arc is niche)? Our belief is that not only do you need the browser layer to win, but “the hard part” is nailing the interface, the interactions, the storytelling. That’s our bread & butter. That’s the expertise of our team. Now you can see how these puzzle pieces fit together… We built something people love (in Arc) and we intend to stick by it. But we also won’t lose sight of why our team poured so much blood, sweat and tears over the past 4 years into this company: the mission to build a new interface to the internet used by hundreds of millions of people every day. It truly feels like the moment we were waiting for is here and we won’t miss it. Everything we’ve done up until this point was for this type of window, even if we couldn’t have predicted it would play out exactly this way. We’re hopeful that more of you will understand why we’re building this second product soon. I feel confident you will once we can show you more of what we’re dreaming up, and once more of the things we’ve heard and seen in the industry reveal themselves soon. Candidly, we wanted to wait on this announcement but random stuff was leaking and it seemed wrong for you to hear from anyone except us first. We’ve always been at our best when we’re open & honest. We’ll continue to be. Finally, THANK YOU, again, for the love & tough love. We don’t take it for granted. We can’t wait to ship, ship, ship in early 2025!

Josh Miller

188,962 views • 1 year ago